Baltimore weather

Our guide to the weather in Baltimore during May

23

Average high

6

UV Index

157mm

Monthly rainfall

76%

Humidity

We've looked at the most up-to-date weather data for Baltimore, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Baltimore weather in May.

How warm is it in Baltimore during May?

The temperature reaches around 23℃ during the daytime in May, falling away to 13℃ at night. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Baltimore during May?

On average, there will be 9 rainy days during the month, amounting to 157.2mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Baltimore during May?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in May. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

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Weather in Baltimore

Our month-by-month guide to the weather and climate in Baltimore

3.2

Baltimore weather in

January
5.6

Baltimore weather in

February
10.7

Baltimore weather in

March
17.0

Baltimore weather in

April
22.5

Baltimore weather in

May
27.4

Baltimore weather in

June
30.4

Baltimore weather in

July
29.5

Baltimore weather in

August
25.8

Baltimore weather in

September
19.1

Baltimore weather in

October
11.9

Baltimore weather in

November
7.0

Baltimore weather in

December